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GB1148558A - Piston ring and process for the production thereof - Google Patents

Piston ring and process for the production thereof

Info

Publication number
GB1148558A
GB1148558A GB34996/67A GB3499667A GB1148558A GB 1148558 A GB1148558 A GB 1148558A GB 34996/67 A GB34996/67 A GB 34996/67A GB 3499667 A GB3499667 A GB 3499667A GB 1148558 A GB1148558 A GB 1148558A
Authority
GB
United Kingdom
Prior art keywords
ring
sintered
outer periphery
tons
powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB34996/67A
Inventor
Max Koehler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB1148558A publication Critical patent/GB1148558A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1103—Making porous workpieces or articles with particular physical characteristics
    • B22F3/1109—Inhomogenous pore distribution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/02—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of piston rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/06—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass piston rings from one piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/924—Deformation, material removal, or molding for manufacture of seal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49274—Piston ring or piston packing making
    • Y10T29/49282—Piston ring or piston packing making including grinding or honing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12229—Intermediate article [e.g., blank, etc.]
    • Y10T428/12236—Panel having nonrectangular perimeter
    • Y10T428/12243—Disk
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/21—Circular sheet or circular blank
    • Y10T428/218—Aperture containing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1148558 Making piston rings M KOEHLER 31 July 1967 [10 Oct 1966] 34996/67 Index F2T 37E1R [ Also in Division C7] A sintered split piston ring with a higher density on the inner periphery than on the outer periphery is made by compacting a metal powder such as Fe into a ring which has a greater height on its inner periphery than on its outer periphery, sintering the compact, then compressing the sintered ring so that it has the same height over the whole wall thickness, recompacting with a shaped ram so that the ring has a smaller height on its inner periphery than on its outer periphery, grinding to the required uniform height and cutting the slot and thermally stressing the ring. The initial compacting of the powder and the recompacting of the sintered ring produce an inclined annular surface at 15 degrees to the plane perpendicular to the ring axis. In an example a powder mixture fo 92À8% Fe, 3% Pb, 1À2% C, 3% Ni is compacted at 35 tons,sintered at 1080‹C., compacted at 100 tons, and recompacted with a bevelled ram at 80 tons. The density varies from 7À5 g/c.c. to 6À3 g/c.c. at the outer periphery. Chromium or vanadium may also be added to the iron powder.
GB34996/67A 1966-10-10 1967-07-31 Piston ring and process for the production thereof Expired GB1148558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0060420 1966-10-10

Publications (1)

Publication Number Publication Date
GB1148558A true GB1148558A (en) 1969-04-16

Family

ID=7229602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34996/67A Expired GB1148558A (en) 1966-10-10 1967-07-31 Piston ring and process for the production thereof

Country Status (7)

Country Link
US (1) US3561087A (en)
AT (1) AT287404B (en)
BE (1) BE703425A (en)
CH (1) CH463893A (en)
GB (1) GB1148558A (en)
LU (1) LU54198A1 (en)
SE (1) SE328449B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097027A3 (en) * 1982-06-16 1985-11-27 Ipm Corporation Densification of selected areas of powder metal parts
WO1997047419A1 (en) * 1996-06-11 1997-12-18 British Nuclear Fuels Plc Manufacture of articles with controlled density distribution

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036495B2 (en) * 1969-08-15 1972-01-05 Nippon Piston Ring K K , Tokio METHOD OF MANUFACTURING A PISTON RING
US3926166A (en) * 1970-10-01 1975-12-16 Int Harvester Co Ring manufacture, productive of line contact seal
US3811166A (en) * 1971-11-03 1974-05-21 V Rakovsky Method of making split metal packing rings
US3980310A (en) * 1971-11-05 1976-09-14 International Harvester Company Ring manufacture, productive of face contact seal
DE2219856B2 (en) * 1972-04-22 1974-07-18 Bayrisches Leichtmetallwerk Graf Bluecher Von Wahlstatt Kg, 8000 Muenchen Process for the production of sintered forged workpieces forged in one operation
US3867751A (en) * 1972-10-05 1975-02-25 Formflo Ltd Sintered blanks
GB1453181A (en) * 1975-01-17 1976-10-20 Caterpillar Tractor Co Apex seal for rotary engines
US4184242A (en) * 1978-03-02 1980-01-22 Petrie John A Beveled retaining ring and method for constructing the same
DE3029420C2 (en) * 1980-08-02 1982-05-19 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Piston rings for internal combustion engines
GB8420545D0 (en) * 1984-08-13 1984-09-19 Ae Plc Piston rings
US6062569A (en) * 1997-12-12 2000-05-16 Northrop Grumman Corporation Fiber reinforced ceramic matrix composite piston ring
EP1529852B1 (en) * 2002-07-01 2008-12-31 Hitachi Metals, Ltd. Material for sliding parts having self-lubricity and wire material for piston ring
US20050242528A1 (en) * 2004-04-30 2005-11-03 Nikonchuk Vincent A Seal assembly with dual density powder metal seat member
DE102007027223A1 (en) * 2007-06-13 2008-12-24 Mahle International Gmbh Piston ring for the piston of an internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097027A3 (en) * 1982-06-16 1985-11-27 Ipm Corporation Densification of selected areas of powder metal parts
WO1997047419A1 (en) * 1996-06-11 1997-12-18 British Nuclear Fuels Plc Manufacture of articles with controlled density distribution

Also Published As

Publication number Publication date
SE328449B (en) 1970-09-14
BE703425A (en) 1968-02-01
LU54198A1 (en) 1967-09-28
CH463893A (en) 1968-10-15
AT287404B (en) 1971-01-25
US3561087A (en) 1971-02-09

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